[Lldb-commits] [lldb] r124149 - /lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp

[Johnny Chen]

Author: johnny
Date: Mon Jan 24 16:25:48 2011
New Revision: 124149

URL: http://llvm.org/viewvc/llvm-project?rev=124149&view=rev
Log:
Add comment about using Encoding A1 push instruction to emulate the "stmfd sp!, reg" case,
i.e., pushing one register onto the full descending stacks.

Modified:
    lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp

Modified: lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp?rev=124149&r1=124148&r2=124149&view=diff
==============================================================================
--- lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp (original)
+++ lldb/trunk/source/Plugins/Process/Utility/EmulateInstructionARM.cpp Mon Jan 24 16:25:48 2011
@@ -135,6 +135,9 @@
             break;
         case eEncodingA1:
             registers = EmulateInstruction::UnsignedBits (opcode, 15, 0);
+            // Instead of return false, let's handle the following case as well,
+            // which amounts to pushing one reg onto the full descending stacks.
+            // if BitCount(register_list) < 2 then SEE STMDB / STMFD;
             break;
         case eEncodingA2:
             t = EmulateInstruction::UnsignedBits (opcode, 15, 12);